#include<iostream>
using namespace std;
class Plural
{
private:
	double t, f;
public:
	Plural();
	Plural(double a, double b);
	Plural(const Plural& p1);
	~Plural();
	Plural Plus(Plural p1);
	Plural Minus(Plural p1);
	Plural Multiply(Plural p1);
	int Judgement();
	Plural Divide(Plural p1);
	void Display();
};
